UPDATE: 4X4 ENGAGEMENT ISSUE
Thread Starter
|
Junior User
Joined: Dec 2010
Posts: 62
Likes: 0
From: Michigan
UPDATE: 4X4 ENGAGEMENT ISSUE
Update: the non-engaging 4wd is fixed!!!!!!!!
<HR style="BACKGROUND-COLOR: #d1d1e1; COLOR: #d1d1e1" SIZE=1 itxtvisited="1"><!-- / icon and title --><!-- message -->First I want to thank all who contributed to my resolving my 4x4 engagement problem, especially Alloro, Denphillips2, and Jennkent5454, and StevenIll. Each of you were integral in assisting in resolving this issue.
You can read my posts and follow the plan of attack. At first I thought this was a t/c motor issue. I replaced the motor and nothing changed. Upon further reading on this site, I was directed to the 4x4 actuator and the vacuum lines connected thereto.
What was most helpful was getting under the truck. I first checked around the actuator, sprayed it with WD-40 to ensure movement. I had a friend get in the truck and change the ESOF switch from 2 to 4wd as I watched the acutator. It would only move one way which led me to believe I had a vacuum issue up the line. To be sure, I began by disconnecting the vacuum lines to the 4x4 actuator. I found that I had vacuum to the red line (4x2), but novacuum from the blue (4x4) If that was the case I was told to move back up the vacuum lines to look for a crack or listen for suction. Part of the difficulty in locating such a crack or leak is both the red and blue lines which come out of the solenoids are protected and hidden in that black flexible conduit so how do you know if there is a problem without pulling the conduit covering off?
Anyway, I was told to focus on areas near the battery where the solenoids are located due to battery acid or battery cable movement so I started there and just moved down. I did peel some of the conduit back in an area that looked corroded and suspicious and don't you know, I found it! A hole in the blue (4x4) line! It appears it was due to battery acid. Glegarry Auto Parts in Livonia, MI "gave" me a piece of vacuum line as a Christmas present which I bridged over the cut-out portion. I added a little caulk adhesive to hold it in place and my 4x4 works again! YEAH!!!!!!
Note: As I have always had, my A4wd light still blinks and I don't know why. Perhaps a spped sensor??? I'll deal with that next spring. But 4x4 hi and low are functioning
Thanks again, all. Have a very Merry Christmas and Happy New Year.
<HR style="BACKGROUND-COLOR: #d1d1e1; COLOR: #d1d1e1" SIZE=1 itxtvisited="1"><!-- / icon and title --><!-- message -->First I want to thank all who contributed to my resolving my 4x4 engagement problem, especially Alloro, Denphillips2, and Jennkent5454, and StevenIll. Each of you were integral in assisting in resolving this issue.
You can read my posts and follow the plan of attack. At first I thought this was a t/c motor issue. I replaced the motor and nothing changed. Upon further reading on this site, I was directed to the 4x4 actuator and the vacuum lines connected thereto.
What was most helpful was getting under the truck. I first checked around the actuator, sprayed it with WD-40 to ensure movement. I had a friend get in the truck and change the ESOF switch from 2 to 4wd as I watched the acutator. It would only move one way which led me to believe I had a vacuum issue up the line. To be sure, I began by disconnecting the vacuum lines to the 4x4 actuator. I found that I had vacuum to the red line (4x2), but novacuum from the blue (4x4) If that was the case I was told to move back up the vacuum lines to look for a crack or listen for suction. Part of the difficulty in locating such a crack or leak is both the red and blue lines which come out of the solenoids are protected and hidden in that black flexible conduit so how do you know if there is a problem without pulling the conduit covering off?
Anyway, I was told to focus on areas near the battery where the solenoids are located due to battery acid or battery cable movement so I started there and just moved down. I did peel some of the conduit back in an area that looked corroded and suspicious and don't you know, I found it! A hole in the blue (4x4) line! It appears it was due to battery acid. Glegarry Auto Parts in Livonia, MI "gave" me a piece of vacuum line as a Christmas present which I bridged over the cut-out portion. I added a little caulk adhesive to hold it in place and my 4x4 works again! YEAH!!!!!!
Note: As I have always had, my A4wd light still blinks and I don't know why. Perhaps a spped sensor??? I'll deal with that next spring. But 4x4 hi and low are functioning
Thanks again, all. Have a very Merry Christmas and Happy New Year.
Thread
Thread Starter
Forum
Replies
Last Post
revytrucks
1997 - 2003 F150
158
Feb 17, 2026 03:36 PM
xjcamaro89
2004 - 2008 F150
463
Feb 13, 2026 05:07 AM
krazybones
2009 - 2014 F150
23
Mar 4, 2015 08:24 PM
